HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 475255Generated: October 29, 2026
N-methyl-2-pyrrolidone → HCID 71272391, compound
https://huagongshe.com/reaction/475255
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | N-methyl-2-pyrrolidone | HCID 13387 | — |
| Reactant | 4-Bromo-1-(tetrahydro-2H-pyran-2-yl)-1H-indazole | HCID 57474729 | — |
| Catalyst | Zinc cyanide (Zn(CN)2) | HCID 11186 | — |
| Product | HCID 71272391 | HCID 71272391 | 75% |
Reaction Steps
To a mixture of 196 (0.57 g, 2.05 mmol), Zn(CN)2 (264 mg, 2.25 mmol) in NMP (6 mL) under an argon atmosphere was added (Ph3P)4Pd(0) (356 mg, 0.31 mmol). The mixture was heated at 85° C. overnight, cooled, and partitioned between EtOAc (300 mL) and H2O (50 mL). The organic layer was separated and washed with brine, dried (MgSO4) and concentrated in vacuo. The residue was purified by SiO2 chromatography eluting with 1% MeOH/DCM to afford 430 mg (75%) of 1-(tetrahydro-2H-pyran-2-yl)-1H-indazole-4-carbonitrile (198) as yellow solid: MS (ESI) m/z=228 [M+1]+.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08637537B2 |
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| Source dataset | uspto-grants-2014_01 |
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| ORD ID | ord-73434ecbd7534df385ada9867b319574 |
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| Source note | uspto-grants-2014_01 |
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